Hat-press.



M. A. OUMING.

HAT PRESS.

APPLICATION FILED JUNE 11, 1913.

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HAT PRESS.

APPLICATION FILED JUNE 11, 1913.

Patented May 5, 1914. 2t%HEETSSHEET 2.

5] vwe vplfoz 6244 00 MARI A. CUMING, OF BROOKLYN, NEW YORK.

HAT-PRESS. 1

Specification of Letters Patent.

Patented May 5, 1914.

Application filed June 11, 1913. Serial No. 772,953.

To all whom it may concern:

Be it known that I, MARI A. CUMING, citizen of the United States of America, residing at Brooklyn, in the county of Klngs and State of New York, have invented certain new and useful Improvements in I-Iat- Presses, of which the following is a specification.

The present invention relates to presses and more particularly to hat presses of the kind described and shown in my Letters Patent Nos. 226,041 and 1,037,841.

The object of this invention is to provide means whereby the efiiciency of the press will be greatly increased and the movement of the mold rendered positive and gradual.

lVith this object in view the invention consists in the means for transmitting movement to a press substantially of the construction shown and described in my Patent No. 226,041.

To make my invention more clear the same is illustrated in the accompanying drawing, in which similar reference characters denote corresponding parts and in which v Figure 1 is an elevation; Fig. 2 a top plan View; Fig. 3 a longitudinal section and Fig. 4 a cross section on line H of Fig. 3.

a denotes the base of the press in form of a tripod, to which are attached the lower ends of three vertical bars I), which at their upper ends carrythe dome c. Slidably mounted on the vertical bars 6 below the dome and serving as a seat to receive the die (not shown) that gives form to the hats,

is the hollow mold d. The bottom of the mold is formed with lugs e, to which are pivotally secured three or more bars f, the lower ends of which are hinged to the ends of the bars g, which at their opposite ends are hinged to lugs h projecting from the base at. These bars f and 9 form systems of toggle joints for forcing the mold 03 with constantly increasing pressure against the dome. Two pairs of the bars f and g are hinged to the ends of a shaft 2' and the third pair are hinged by a short spindle j, which by a link 70 is hinged to the shaft 2', whereby all pairs of toggle joints are caused to always move together.

For the operation of the press I now prefer to use a hydraulic motor, although any other motor may be utilized for that purpose. In the present embodiment of my invention I have shown the motor to comprise a supply pipe Z for the pressure water, which pipe communicates with a vertical elongated cylinder m mounted on the base a in which works a piston n. This piston is counteracted by a spring 0 mounted between the top of the cylinder and the top of the piston. The body of the piston, too, is made long and is provided at one side with teeth at, thus forming a rack. At the side where the teeth a are arranged the cylinder has longitudinal recesses m, so as to expose some of the teeth and to permit their engagement with a toothed segment p fixed on a cross shaft r extending parallel to and opposite the shaft 2'. This shaft 1' is revolubly borne in brackets a projecting from the base a and has keyed to it a pair of levers or bars 8, which are hinged to the ends of bars t, the opposite ends of which are hinged to the shaft The operation of the press as as follows: The pressure water admitted to the cylinder m below the piston n forces the latter upward against the tension of the spring 0 whereby the rack portion in a positive manner transmits movement to the segment 79 keyed to the shaft 1'. The levers 8 receive a swinging motion through a short arc raising the arms or bars 6 and causing the entire system of toggles to move together upwardly, whereby the mold is forced toward the dome in a positive manner and with gradually increasing pressure. backward stroke brings about a gradual lowering of the mold. 7

It is understood that various parts of the construction may be easily modified without departing from the spirit of my invention, and I, therefore, do not wish to restrict myself to the details shown and described.

lVhat I claim and desire to secure by Letters Patent is:

1. In hat presses, the combination with a movable mold and toggle joints for transmitting motion thereto, of a motor having a toothed spring actuated piston, a shaft, members keyed to the latter and connected to said toggle joints and a gear keyed to said shaft and 'meshing with the toothed piston.

The

2. In hat presses, the combination with" niitting motion thereto, of a motor oonkeyed to said shaft and meshing With the sisting of a cylinder having a longitudinal toothed port-ion of said piston.

13 recess, a toothed piston and a spring, said In testimony whereof I afiix my signature spring acting as a resistance against said in presence of two Witnesses.

' piston and the toothed portion of said pis- MARI A. CUMING.

ton being exposed through said recess, a Htnesses: shaft, members keyed to the latter and con- E. D. JUNiOR, neeted to said toggle joints, and a gear MAX D. ORDMANN. t

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of lacents,

Washington, D. C. 

